Annealing box



E. C. RAUSCHENBERG Nov. 24, 1925.y

ANNEALING BOX i Filed De. 25. 1924.

2 Sheets-Sheet 1 mi :zur:

Nav. 24, 1925.

v 1,563,225 E. c. RAuscl-IENBERG Hummm nox Filed Dec. 2s. 1924 2 Sheets-Sheet 2 i l i 7 ldatented Nov.. 234, i925..

i; i am l wat am@ half :Ell/11. C. RAUSCHENBERG, 0F WHEELING, WEST VIRGNI, ASSGNOR TO WHEELING MOLD @L FOUNDRY GO., OF W'HEELING, "WEST VIRGTNIA.

nrmnamne nox.

Application filed December ,23, 1924. Serial 1\To.757,626.

To all whom it may concern: i

Be it known that I, EMIL C. RAUsorrnN- BERG, a citizen of the United States, residing at l/Vheeling, in the county of Ohio and State of West Virginia, have invented certain new and useful Improvements in Annealing Boxes, of which the following is a specification, reference being had therein to the accompanying drawing.

rlhis invention relates to improvements in annealing boxes, and the .primary object is an improvement upon my Patent No. 1,461,- 555, dated July 10th, 1923.

ln the building of numerous boxes according to my patent, it is `found to `be a box that is quite effective, but my present improvement adds flexibility, which is highly desirable, and adds stiffness to the box, which is likewise desirable. y

lt eftectthe above improvements upon my box by constructing it with internal ribs so located in respect to the corrugations as to leave the box `flexible and at the same time possessing the necessary stiffness.

I have found that a box provided with im `ternal corrugations and withinternal ribs possesses all of the foregoing qualities of v iiexibility and stiffness.

Further objects of my present improve- `ment will appear hereinafter from the following detailed description.

ln the accompanying drawings Figure 1 is one-half a central horizontal sectional view on line 1 1 of Fig. 4, theremaining half being a top plan view.

Fig. 2 shows one-half of the box a centralv vertical section and one-half a side elevation Fig. 3 is a cross-sectional view of Fig. 2, on the line 3 8 of that figure.

Fig. 4 is a cross-sectional view of Fig. 2, on the line 4 4 of that figure.

Fig. 5 is a central sectional view through one of the internal corrugations of Fig. 2, on

line 5 5, of Fig. 1.

Fig. 6 is a sectional view through the corrugations at their reduced portions, on the line 6 6, of Fig. 1.

ln carrying out my improvement, the top wall l and the side wall 2, are provided with shown at 6.

It is found in practice that a box having the above described internallyV projecting corrugations 3 andv 5, is quite effective, but at the same time to add stiffness to the box to prevent it falling, cracking or warping between the corrugations, l have added vertical internal ribs 7, which extend upward from the bottom 8 of the box to aboutthe .point 9, and from the point 9, these ribs 7 are widened yvery many times, and the widened portion extends across the tp wall 1 of the box, as shown at 10. The ribs 7 being located between the corrugations serve, as stated, to stiften the box, and the widened top portion 10 sustains the top against warping, cracking or falling inward between the corrugations 3. lt will be observed that these widened portions 10 extend into the box twice the depth of the corrugations 3, .and for the purpose of adding lateral stiffness to these wide portions 10 their lower edges are made 'lf-shaped, as shown at 11.

For the purpose of adding stiffness tothe end-walls 4, at their upper curved portions 12, I provide this part of the box with inwardly extending ribs 13, that extend inward to and are substantially as wide as the wide top portion of the vertical ribs 7, while the lower portion 14 of the ribs are substantially the same width as the ribs 7 of the side ribs. lt will be noticed that the ribs 14,

ending at their upper portions with the wide part 14, are located at opposite sides of the Vcentral corrugations 5, made in the endand connecting with the corrugations, as

shown. These ribs 15, may be made nai rowcr than the depth of the corrugations or may be wider than the depth or or the same depth of the eorrugations. For the same purpose, I also provide the inner side of the box with a plurality of ribs 16, which extend between the ribs 7 and pass across the vertical corrugations Z3. The ribs 15 and 1G each join with the corrugations 3, but as shown they preferably are about the same depth of the said corrugations.

These horizontal ribs 15 and 16 also extend around the corrugations 3 of the box and end-walls and join with the central vertical internal corrugations 5, as shown at 18.

By providing the horizontal internal ribs 15 and 16 the box is held substantially in its original shape and cracking and warping is prevented.

By combining with the internal corrugations, the intermediate internal ribs, I am enabled to lengthen the life of the box very materially and add stiffness without destroying its flexibility, and by having the vertical ribs 7 widened where they cross the top of the box, `I prevent the falling in of the box between the corrugations, and by adding the widened portions 13 at the ends of the box, I strengthen the curved portion which prevents it from cracking, warping or falling in.

Naturally one would suppose that additional rigidity would be added by extending the part 13 between the corrugations and the wide portions 10 of the vertical ribs, but I lind in practice that suoli construction would be objectionable in many particulars, one of them being that it would not add to lthe strength of the box, but has a tendency to warp and crack the walls.

So far as I am aware, the combination or the internal corrugations with the internal ribs, as described, is novel and it has the advantage hereinbefore mentioned.

By forming the ribs on the interior of the box, they are not subjected to the oxi`di- Zation or burning off from the direct flame as would be ythe case it they were in the outside of the box, thus losing their stiiiening effect and permitting the box to warp between the corrugations, due to the expansion and contraction or the box. The specific construction described, prevents such a result.

Slight modifications may be made in the construction without departing from the invention, so long as they are within the interpretation of the appended claims.

Having thus described my invention, what I claim and 'desire to secure by Letters Patent is:

1. n annealing Ibo-x having its sides and top walls provided with continuously transversely extending inwardly projecting corrugatioi'is, the sides and top walls provided with continuously transversely extending inwardly projecting ribs located substantially midway between the corrugations, the tops of the said ribs being of a width substantially greater than the depth of the corrugatons, for the purpose described.

Q. An annealing box having` its side and top walls provided with continuous internally extending' corrugations, the inner side of its top wall provided with internally inwardly projecting sti'liening ribs located intermediate the corrugations, the stiiliening ribs extending inward substantially twice the depth or the corrugations, for the purpose described.

3. An annealing box having its sides and top walls provided with continuously extending inwardly projecting corrugations, said corrugations increasing` in depth from the said side walls to the center or' the top, said increase in depth being substantially twice that of the corrugations in the side wall.

1. An annealing box having its sides and top walls provided with continuously extending inwardly projecting corrugations, the side and top walls provided with continuously extending inwardly projecting ribs, said ribs located substantially midway the said corrugations whereby the intervening wall between the corrugations is supported by the said ribs.

5. An annealing box having its top and side walls provided with continuously extending inwardly projecting corrugations, the said side and top walls provided with inwardly extending ribs located intermediate the said corrugations, said ribs in the side walls being` shallow and at the top wall extending inward a distance substantially twice the depth of the corrugations1 whereby the said intervening wall is supported.

6. An annealing box having its top and side walls provided with parallel continu` ously extending inwardly projecting corrugations, the said top and side walls provided with inwardly extending ribs, said ribs at the top being substantially twice the depth of the corrugations, and longitudinally inwardly extending ribs located at the ends of the top and side walls and connecting with the wide top portion of the adjacent inwardly extending rib for the purpose of supporting the intervening side walls and the tops of the end walls.

7 As a new article of manufacture, an annealing` 4box having its wall provided with internally extending corrugations to furnish flexibility and partially support the wall, internally extending ribs located between the corrugations to form a support for the wall, whereby the internal corrugations and ribs co-operate to prevent the wall o]c the box in use from buckling and cracking.

S. An improved article 'of manufacture, two cooperating to substantially prevent comprising an annealing box having its Wall the buckling and breaking of the Wall under provided with internally extending corrn-l repeated heating and cooling thereof in use. 10 gations, and internally extending ribs looat- In testimony whereof I` hereunto affix my ed between the corrugations, whereby the Signature.

corrngatio-ns furnish flexibility and the said ribs provide a support for the Wall, the EMIL C. RAUSCHENBERG. 

